W32/Rbot-DB is a worm which attempts to spread to remote network shares. It also contains backdoor Trojan functionality, allowing unauthorised remote access to the infected computer via IRC channels while running in the background as a service process.
W32/Rbot-DB copies itself to the Windows system folder as FIREWAL1.EXE and creates entries at the following locations in the registry so as to run itself on system startup:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run
HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
W32/Rbot-DB spreads to network shares with weak passwords and via network security exploits as a result of the backdoor Trojan element receiving the appropriate command from a remote user, copying itself to FIREWAL1.DAT on the local computer at the same time.
W32/Rbot-DB may set the following registry entries:
HKLM\SOFTWARE\Microsoft\Ole\EnableDCOM = "N"
HKLM\SYSTEM\CurrentControlSet\Control\Lsa\restrictanonymous = "1"
W32/Rbot-DB may try to delete the C$, D$, E$, IPC$ and ADMIN$ network shares on the host computer.